One thing I can suggest is trying every USB port on your machine. My ColorMunkli Photo is sensitive to which USB port is being used. Mine won't even power up unless I plug it into a USB 2.0 port and it actually seems to like the aux port on the back of my keyboard best. I can tell it has something to do with power levels: the ColorMunki seems to draw a lot of power and I surmised that maybe some ports can't supply the amperage needed. I know Jose Rodriguez had the red indicator problem in one of his videos recently and fixed it. You might also want to ask him on his Facebook group because I don't know what solution he came up with:
https://www.facebook.com/groups/1915547415436501/Regards,
Mike
Thankyou Mike have messaged JR and wait reply. Russ.